Joiner&#39;s clamp



H. MLLER. IONER'S CLAMP. APPLICATION FILED Nov. s. 1919.

rammed July 13, 1920;

HY. MULLER.

JOINERS CLAMP. v APPLICATION man' Nov. e. 19.19. 1,346,236. Patented July 1920.

l 2 sHEETs- E T 2.

UNTE STATES PATENT FFC.

HENRY MLLER, OF l/VATERBURY, CONNECTICUT.

JOINERS CLAMP.

remesa.

To @ZZ whom it may concern Be itknown that l, HENRY h/ILLER, a citizen of the United States, and a resident of l/Vaterbury, in the county of New Haven and State of Connecticut, have invented certain new and useful improvements in Joiners7 Clamps, which improvements are fully set forth in the following specification.

This invention relates to improvements in devices of that class affording a` pair of operating jaws and available for temporarily clamping together' work or parts to be treated or operated upon, more particularly by joiners and other wood-workers, such devices being commonly known as joiners clamps.

rlhe object of this invention is to provide a clamp of the character above indicated, which shall be simple and inexpensive as regards its construction; durable, efhcient and reliable in practical service; convenient in its application to practical purposes, and which shall posse-ss certain well-defined advantages over prior analogous constructionsL The invention consists in certain combinations, details and part-s whereby, together with the novel disposition and relative arrangement of said parts, the attainment of the foregoing object is rendered practicable, all of which will be hereinafter more specilically referred to and set forth in the claims hereto appended.

T he invention is clearly illustrated in the accompanying drawings, wherein:

Figure l is a side elevation `of a joiners clai'np embodying my said imjnovements, the cover being omitted from the stopmechanism recess with which the shiftable jaw is provided, and portions of the opposite, relatively liked jaw being broken away to better disclose certain minor details of the construction.

Fig. 2 is a transverse section thereof, as along the dotted line :r-f/J of Fig. l, the cover mentioned in the description of Fig. 1 being retained.

Fig. 3 is an enlarged detail sectional view, the section being taken along the dotted line fy-g/ of Fig. l.

Fig. 4l; is a view similar to Fig. 3, the section being taken along the dotted line s-e of Fig. l.

Fig. 5 is a view showing a fragment of the relatively vlined jaw so turned from the position it is shown as occupying in Fig. l

Specification of Letters Patent. Paijnted Judy 13, 192g Application filed November 8, 1919. l

Serial No. 336,743.

as to disclose in elevation the cooperating elements through the medium of which said jaw is hingedly conjoined with one of the operating-bars of the device.

liaving reference to the accompanying drawings, wherein similar reference-mimerals denote like parts through out the several views, l, in carrying out my present invention, provide primary and secondary operating-bars 2, 2', respectively, the same being normally disposed in spaced parallel ism each relatively to the other, preferably formed,` respectively, from flat material of substantial thickness, and provided longitudinally therealong, the one with a series of stop-receiving clearances 2 and having firmly conjoined therewith a suitable shank 3, and the other with a like series of stopreceiving clearances 3', conforming, by preference, to those denoted by 2, and having freely conjoined therewith a suitable shank 3, similar, in the main, to the shank 3. l

l further provide opposed jaws 4, 4L',

ywhich are jointly intersected and freely pierced by the operating-bars 2, 2', and so that the jaw llmay be freely shifted, when liberated for such action, to and fro along said operating-bars jointly, while the jaw l" is at all time-s restrained against such free shifting action, though being at all times controlledly adjustable to and fro jointly along the Shanks of said operatingbars, the jaw 4 being herein treated, accordingly, as bearing at all times a fixed relation relatively to the jaw Ll, particularly under any operating-stress brought to bear on said jaws ointly, in practice. i

As hand-operative elements whereby the jaw il may be controlledly adjusted, either simultaneously or alternately to and fro along the shan :s 3, 3, and the opposed jaws aforenamed may be otherwise relatively manipulated in practice, l providea hand-piece fl for cooperation with the shank 3 and a similar hand-piece ll for cooperation with the shank 3, all as will be hereinafter more fully explained.

To the end that the hand-piece il shall be rotatable independently of the sh ank with which it cooperates, said hand-piece is fitted with a nut 5, here shown asbeing elongated, traversing the hand-piece diametrically, lined relatively thereto through the medium of retaining-pin 5, and, further,

consideration, projecting duly outwardly Y section of said jaw by the shank 3,' the latter therefrom and duly and axially into said hand-piece at the advance end thereof,

The hand-piece 4 is litted with a cylindrical ferrule 5', -at its advance end, and

which may be tixedly retained in place Aby means of any common and well-known fastening element, as the rivet 5, said ferrnle being provided with an inturned flange 6, at its advance end. l v

There islet telescopically into the ferrule i 5' at its advance end a cylindrical link 6,

axially by way of which conjunctively with said ferrule, the shank 3 enters the handpiece aforenamed for its threaded engagement with the nut 5, said link having a swivels-d Yconnection with said ferrule, Vwhereby said hand-piece, accompanied by the errule, may be oppositely rotated independently of the link, the latter-being hingedly connected at its advance end to the jaw 4', as through the medium of the. angular bearing-pieces 6', 6, let opposedly into the adjacent, outer face of said jaw and there held through the medium of any snitable fasteners, as thescrews 7. Y

Where deemed advisable a retaining-plate 7V may be availed in addition to the screws 7, the same being duly secured, as by means of screws 7, to the jaw 4 at its outer face, with the major portion of each of the bearing-pieces aforenamed between such retaining-plate and said jaw, substantially as shown; 'while the minor elements of the bearing-pieces thus opposed and secured, project outwardly through and somewhat beyond said retaining-plate, as by way of suitably spaced openings 8, 8', formed therein, and between and to which minor elements is hingedly conjoined, through the medium of suitable opposite pintles or trnnnions 8, 8', the link G, whereby, through proper manipulation of thehand-piece 4, the operating-bar Qrmay be rocked to and fro in the general plane normally occupied by the respective jaws of the device, and to permit which rocking action on the part of said operating-bar, due clearance is provided withinjthe jaw 4, at the point of intersection thereof by the shank 3, all as clearly shown in Fig. l of the drawing. j

Again, where found needful or desirable, a finishing-plate 9 may be secured, as by means of screws 9, to the jaw 4 at its inner or operating face and at the point of interpiercing said plate -by way of a suitable opening 9 formed therein, and said opening being duly enlarged to permit the to and Vare Vsecured together in any common and Vwell-kiiown way, though preferably through the medium of a fastening-pin l0, said shank telescopically entering the hand-piece at Vits advance end; and to facilitate the use of the pin l0, the hand-piece4 may be provided with a ferrule l0', similar to 5, whereupon such pin extends diametrically throughfsnch ferrule and that portion of the shank 3- embraced thereby, as clearly indicated in Fig. l.

l0 denotes an'elongated nut, similar` to 5, the same extending looselythrough the jaw 4, at right angles to the shank 3 and the line along which the latter intersects said jaw, said shank piercing and havinga threaded engagement with said nut, an d the latter being loosely disposed to the end that the operating-bar 2 may be caused to undergo a rocking actionV to and fro, through proper manipulation of the hand-pieces 4, 4 or either thereof, within the general plane of the jaws of the device, and generally in unison with the operating-bar 2, due clearance to this end being providedwithin the jaw 4', at the point of intersection thereof by the shank 3, as clearly shown in Fig. l; and the respective operating parts of the device, including the jaws 4, V4', being duly assembled for service. g Y

lt will be noted in this rconnection that while the operating-bars ofy thek device may be rocked to and fro generally in unison, as hereinbefore explained, said operating-bars have variant aXes of movement, considered relatively to the eoperating jaws of the device, and particularly the jaw 4.

The shank 3 has a swiveled connection at its advance end with the Voperating-bar 2', said shank being duly threaded for coperation, accordingly, with the nut l0, and being of sufficient length between its point of connection with the operating-bar 2 and the hand-piece 4' to permit substantial relative adjustment, to and fro therealong,

of the adjacent portion of the jaw 4', upon the hand-piece 4' being duly manipulated.

The foregoing also applies, in the main, to the shank 3 and parts coperating therewith for a like adjustment of the adjacent portion of the jaw 4', to and fro along said shank.

The shiftable aw 4 is more orless loosely mounted on the operating-bars 2, 2, and hence is shiftable, by a sliding movement, to and fro along saidoperating-bars,in one direction to bring the jaw 4 relatively nearer the jaw 4', preparatory to the inipartation of a clamping effect on any articleV or object which may be inserted between the respective jaws of the device, at the nose ramasse;

portions thereof, and as in common practice, and in the opposite direction to remove the jaw 4 relatively away from the jaw 4, as for the purpose of releasing c ny article or object held between the respective jaws of the device, at the nose portions thereof.

llVhile any appropriate means may beV availed of for releasably fastening the jaw 4 at its variant positions of adjustment along the operating-bars of the device, I purpose providing, in this connection, the jaw 4 with an elongated recess 11, at one side thereof, and wherein is disposed a duplex stop-mechanism which will now be described.

11 is an elongated base, fitting within the recess 1l and there held by means of any suitable fasteners, as the screws 11, said base being fitted with medial, elongated socket 12, closed at its end most distant from the base 11', and normally open at its opposite end, where the same is reduced .diametrically, lies within a suitable opening 12, formed in thebase aforenamed, and is here shown as beingA swaged over along its free edge whereby the socket is fastened to said base. Y

12 is a push-pin,working-endwise within the socket 12 against the tendency of a spiral spring 13, the latter positioned within the socket 12, with its upper portion preferably occupying a recess 13 formed lengthwise in the push-pin aforenamed, at the adjacent, inner end thereof, said spring tend v ing at all times to el astically hold such pushpin to the limit of its outward play.

13, 13-'denote, respectively, opposite stop-pintles, working endwise in suitable heads 14, 14', respectively, at the opposite ends of the base 11', and normally projecting, each through and well-beyond its cooperating head.

14, 14" denote, respectively, opposite, intermediate levers, pivotally conjoined, the one at one end thereof with the stop-pintle 13, having its fulcrum at 15, and somewhat loosely engaging at its opposite end, the push-pin 12, at the adjacent side thereof, and the other with the stop-pintle 13", having its fulcrum at 15, and' somewhat loosely engaging at its opposite end the push-pin 12, at its adjacent or opposite side thereof, the parts cooperating with the push pin 12, at the opposite sides thereof, being counterparts in all essential details of form and construction.

15, 15 denote clearances, beneath and at the opposite ends of the base 11, the same being formed, in this instance, by iirrnly lixing, as through the medium of suitable spacing rivets 16, 16', 16, 16', respectively, appropriate, minor yokes 17, 17 disposed, respectively, in suitable spaced parallel relation to the base aforenamed, substantially as shown, the recess 11 having a suitable medial pocket 17, and suitable, opposite end-pockets 18, 18, for the accommodation of the socket 12 and opposite clearance-forming ele- ^ments aforenamed, when the stop-mechanism is in position for service within the recess aforenamed, any appropriate closureplate, as 18"*being employed for spanning and coveringsaid recess, and being fitted with a suitable, medial opening 18" outwardly through and duly beyond which projects at all times the free end-portion of puslrpin 12, undue outward play on the part of which is limited by the action of the parts cooperating therewith.

The yokes 17, 17 are best provided, the one with an opening 19,y in registry with and for the reception of the freeend-portion of the adjacent stop-pintleil, and the other with a like opening 19 for corresponding cooperation with the stoppintle 13m..

The parts being assembled, ooerating bars 2, 2, occupy, respectively, t e clearances 15, 15', with the stop-pintles aforenamed lockingly engaging the operatingbars 2, 2, in this instance by entering, one thereof that one of the clearance-openings 2 in registry with which such stoppintle may be brought under adjustment of the jaw 4 relatively along the operating-bars of the device, and the other, that one of the clearance-openings 3 in registryowith which such last-referred to stopfpintle may be brought under such adjustment of the jaw 4, all under the normal elastic action of the spring 13, said jaw being thus temporarily locked in place relatively to the operatingbars of the device, and say, with an object to be clamped positioned between the jaws thereof, the jaw 4 being duly retracted along the respective shanks 3, 3 Now, an initial clamping effect may be had on such object by causing the nose portion of the jaw 4 to advance along the shank 3 in the direction of the now temporarily locked jaw 4, by duly turning the handpiece 4, he space intervening between thegnose Tportions of the-opposing jaws being thereby contracted, while a further and more pronounced clamping effect may be now had on sai-d obj ect by causing the heel j'mrtion of the jaw 4 to recede along the shank il, away from the corresponding heel portieri of llO the jaw 4by duly turning the hand-piece 1 operating-bars, thereby .permitting the saine to be shifted, Yas .the user may,V desire in eitherirdirection along such operating-bars, at. which new` position the jaw becomes au- .tomatically .again lockedin` its relation to said operatingbars, the user merely withdrawing his linger-.pressure -i'rom the pushpin aforenamed. f

j llVhereupon, `tor-further clamping purposes, [the handfpieces Ll, 4/ are Lagain manipulated as hereinbetore explained, for' actuating' the aw 11V; r Y

Bue clearance being provided at all lines of intersection of the respective jaws of' theV device by the operating-bars thereof,

there Ais permitted an endwise shitting ac-V 1 tion lot the jaws, each substantially in parallelism with the 'other and under lwhich the operating-bars are. caused. intersect said jaws in, parallelism. though jointly at an inclination thereto, and being important as it insures for the device marked iler;l

ibility with a like resultant increaseV iii-the facility with which my presentimproved clamp may ae applied to practical purposes.

The operation of the i-clamp will be. ap-V parent from. the foregoing" description thereof; "andit will Vbe seen that modifications thereof, Vparticularly as' regards 'the specific character of `the stop-,mechanism made use of,'includingyarious parts and details of the general construction, be rted to without*departing `materially from the spirit and principle vo'finy invention as hereinset forth"and-as-coiiiingfwithi in the scope ofthe claims hereto appended.

Having thus described my invention, l claim: Y w -n Y l. A joiners-clamp comprising a pair of operating-bars Y arranged in spaced Aparallel relation, one thereof having a .threaded shank firmly conjoined therewith; a pair of clamping aws mounted on'saidf Operatingbar's, one :tor sliding adjustments there,- along, and the other having a link hinged 'thereto at its outer face, and beingV freely intersected, conjunctively with such link, by the shank aforenamed; ahand-piece swiveled to said link and affording a fixed nut having a `threaded engagement with said shank,V whereby direct and reverse adjustments of the'last-named jaw may-be efrectedg and-nieanslitorl temporarily locking theirst-narned jawvto said operating-bars, at variant positionstherealong. A i 2. A joiners clamp comprisinga pairof operating-bars arranged in:- spaced parallel relation, one Vhaving threaded shank iixedly conjoinedztherewith and the yother having a similar shank swiveled thereto; pair of clamping jaws mountedon said operating-bars, one for sliding adjustments therealong and the other Vaffording a rock-A ing nut having athreaded engagement with the swiveled shank, having a Vlink hinged thereto at its outer face, .and :being intersected, conjunctively with said link, by the opposite shankV aior'enamed; a hand-piece fastened. to Vsaid swiveled shank, at the outer end thereof, and whereby the vheel-portion ot the last-named jaw may be directly and reyersely actuated; an4 additional handpiece Vaffording Va fixed nuty having a threaded engagement with said opposite shank, and whereby the nose-portion of the jaw 'last-named be directly and rerersely actuated, saidadditional `hand-piece beingswiveled'to said link tothis end; and means ,for temporarily locking the firstnamed jaw to said operating-bars, at Variant positions therealong, `due clearance being provided at all lines of Vintersection of the respective clampingjaws bythe "respectire loperatiiig-barsYto insurel general'hexibilityY forthe device as aV whole.V

f HENRY` MLLER 

